$OpenBSD: patch-src_include_storage_barrier_h,v 1.1 2015/01/16 23:24:15 landry Exp $

fix build on alpha

--- src/include/storage/barrier.h.orig	Fri Jan 16 13:08:20 2015
+++ src/include/storage/barrier.h	Fri Jan 16 13:24:05 2015
@@ -117,7 +117,7 @@ extern slock_t dummy_spinlock;
  * read barrier to cover that case.  We might need to add that later.
  */
 #define pg_memory_barrier()		__asm__ __volatile__ ("mb" : : : "memory")
-#define pg_read_barrier()		__asm__ __volatile__ ("rmb" : : : "memory")
+#define pg_read_barrier()		__asm__ __volatile__ ("mb" : : : "memory")
 #define pg_write_barrier()		__asm__ __volatile__ ("wmb" : : : "memory")
 #elif defined(__hppa) || defined(__hppa__)		/* HP PA-RISC */
 
